Another crack at making a DOHC "cool"

did you check clearance ,it looks like the rear tire hits the seat pan before the shocks bottom out.... otherwise nice work...except..
that front tire is really stupid , it will put you down on your face sooner or later
 
Using a ratchet strap to test showed the tire has about 3/4" clearance at full shock compression so it's good to go.

About the tires - I didn't get this bike to push to its limits. Even if I did I wouldn't be pushing it to its limits in the rainy season (which is coming up as mentioned).

I'm no expert on quasi vintage bikes like the 81' CB750, and what if anything makes them so drastically different than all the ADV, dual sport and enduro bikes that successfully ride around all year with the same style tires, and aren't crashing left and right.
My suspicion is people's heartburn with these tires mounted on this bike is that I wont be able to get a knee down or scrape the pipes going through the twistys (which is something I'm not interested in doing anyway). I sold my modern technology, excellent handling sport bike and bought this 34 year old project not to chase a rabbit trying to squeeze every last drop of performance out of it or even make it perform on par with a modern bike, but to have something fun to ride that puts a smile on my face.

The brakes and geometry of this bike might very well be less safe than these tires but I am aware of that and will ride accordingly taking it all into account. Hell, depending on what forum you're on - welding on your frame is the most dangerous thing you could do.

The DOT blessed off on these as being road worthy tires, they meet the weight spec of the bike and as the rider, I'm aware of their speed imitations and plan to keep it within those parameters while these tires are on. In my opinion, given the upcoming weather, putting summer performance tires or antiquated Firestones that look "vintage" would be far more "stupid" than these.

And like I said - if these don't perform as I expect them to I'll swap for them for something else.

Hell, if they put me on my face, I'll post pictures for your satisfaction.
 
Did a basic tear down cleaning and relube of the front and rear calipers (pic of some components off the rear). Installed new bleeder valves too since those were pretty rounded off.



Shot some fresh paint on them, baked them, then reassembled the rear. I'm still waiting on pads and SS lines for the front.



Relocated the choke to keep the triple as free of clutter as possible. Still unsure what to do about the fork caps now that I'm running progressive springs and don't need the air assist. I'd really rather not have the air hose there just to plug holes and I can't find any 37mm fork caps that fit this thread pitch. I tried CR250 caps and they were a no go.



The old and the new - found these at my local hardware store!



Headers had some surface rust and pitting so I had them media blasted then used some ceramic spray to re coat them. I'm thinking the ceramic coating will help alleviate concerns of rust from using the wrap. We'll see.



Wasn't a fan of the factory muffler so I fitted a 2.5" exhaust pipe with a 30* bend.





That's all for now.
 
yeah they are trials universal you dont see them oem on heavy adv bikes for a very good reason the small side knobs on the front aren't suitable..... they will fold under a load .just be ready for it ...wear good gear .good gloves and good elbow pads...because when you least expect it just simply maybe avoiding something in the road or at low load it will warsh out on you say a slick spot or that odd dip in the road why would you even put them on there ? you think they look cool when the bike is parked ? lol
i like the wrench head kickstand and a lot of your other work is outstanding i just dont understand why on the tires
you will need a muffler on that pipe
 
xb33bsa said:
yeah they are trials universal you dont see them oem on heavy adv bikes for a very good reason the small side knobs on the front aren't suitable..... they will fold under a load .just be ready for it ...wear good gear .good gloves and good elbow pads...because when you least expect it just simply maybe avoiding something in the road or at low load it will warsh out on you say a slick spot or that odd dip in the road why would you even put them on there ? you think they look cool when the bike is parked ? lol
i like the wrench head kickstand and a lot of your other work is outstanding i just dont understand why on the tires
you will need a muffler on that pipe

I know I've explained why I put them on there more than once in this thread, but to reiterate, I put them on there because I felt they would deal with wet roads better than summer performance tires. Although I'm sure there are better all season tires available - these were the only tires that were not specifically summer performance tires in the size I needed at the place and time I was buying them.

Hopefully nothing I've said in my short time on this forum has done anything to indicate that I do anything simply to look "cool". I'm an adult and I've out lived that phase of my life long ago so we can take "looking cool" as a reason these tires are on my bike off the table and hopefully both accept that they are on the bike because the research I did on them gave them good reviews and the people I spoke to who run them had good things to say about them.

That said, I'm not updating this thread to go back and forth and argue with anyone about anything done to this bike - I consider myself a sensible guy and do my best to make informed decisions. If I made a terrible choice with these tires, despite my research efforts, then I'll take it as a learning point and swap them.
Hopefully though, before I have to go over my reasons for putting them on again, we can move forward and start discussing what would have been a better choice for a bike that will see rain and the occasional fire road and fit a 19" comstar.
 
by "summer performance tires" do you mean things like the metzeler lasertec, michelin pilot activ, pirelli sport demon, bridgestone bt45, conti tk11/12, etc? the ones that have modern tread patterns and compounds designed to work really well on wet as well as dry roads?

the replies advising against the ones you have chosen are based on the fact they're inappropriate crap.
 
xb33bsa said:
you will need a muffler on that pipe

Need? Nah not really. Will all his neighbors want him to get one? Yeah probably.

As for the bike, keep up the good work man, I'm hoping to pick up a DOHC for a conversion myself here soon.
 
omgwtfbbq! said:
Need? Nah not really. Will all his neighbors want him to get one? Yeah probably.

As for the bike, keep up the good work man, I'm hoping to pick up a DOHC for a conversion myself here soon.
there is already too many attention seeking fags running open pipes no need to encourage it
 
Really? Fags? That seems to be a wildly innapropriate and immature thing to say about people who choose to run straight pipes on THEIR bikes. You seem pretty cool based on other posts that I've seen, so I don't know why you're a prick about straight pipes
 
BurdetteDR said:
Really? Fags? That seems to be a wildly innapropriate and immature thing to say about people who choose to run straight pipes on THEIR bikes. You seem pretty cool based on other posts that I've seen, so I don't know why you're a prick about straight pipes
the idiots running straight pipes are doing nothing but enabling those that would and will legislate against motorcycle mods of any kind ....'specially exhaust mods.. i want to be able to modify my exhaust but the culls that run open pipes are ruining it for us that actually are interested in doing it for performance , not just to get attention.there is no good reason or performance advantange to open pipes only a pathetic need for attention by anybody that runs them .... as far as the fag moniker that is in reference to the southpark episode that is quite spot on
https://www.youtube.com/watch?v=xGyKBFCd_u4
 
BurdetteDR said:
I don't know why you're a prick about straight pipes

For the sake of discussion, let's assume some slob wearing nothing but a bright red Speedo comes up to you and farts directly in your face, then is like, "Hey wasn't that cool? LOOK AT ME!" How would you most likely respond?

See, the nice thing about the red Speedo scenario, though it sounds revolting at first, is it's easy to act out on your desire to correct the perpetrator's behavior, whereas there's rarely sufficient time to get a bead on the douche that blows by with the straight pipes.
 
xb33bsa said:
the idiots running straight pipes are doing nothing but enabling those that would and will legislate against motorcycle mods of any kind ....'specially exhaust mods..

Hate to be the bearer of bad news, but exhaust mods are already illegal in most states as far as I'm aware. Entirely unenforced, but that's another matter.

xb33bsa said:
there is no good reason or performance advantange to open pipes...

I mean, there is a demonstrable advantage to open pipes in performance applications so this statement is flat out false. If you don't like it that's fine, you're free to dislike anything. Don't spout off misinformation about things so others avoid them just because you don't like it though.
 
i am referring to the ignorant culls that run unmuffled open pipes on the street
granted motogp allows open pipes but part of that is for the show ,the noise is part of the spectacle.there is no excuse for it on the street ,public roads,it is just pure stupidity and attention seeking
 
Well, the south park reference is pretty entertaining. While I do agree that straight pipes are obnoxious, I guess I just didn't understand the unnecessary name calling. My bike has drag pipes (bought it that way) with no baffles and I absolutely despise it. It sounds like 4 lawn mowers in a "looney toons, cloud of limbs" fist fight. Saving my pennies for a carpy 4-1, as I understand they come with a removable baffle.
 
Insightful debate folks!

My pipe has a resonator insert though.

However, even if it didn't, people have been riding around with straight pipes since before I was born so I would bet that IF my pipes were straight it wouldn't cause legislature banning motorcycle modifications. This is nothing new and nothing to be a dramatic about.

Some of you guys need to take a deep breath and relax. Go ride your bike and stop getting worked up to the point of insulting others about what they choose to do to their bikes.
 
Re: Another crack at making a DOHC "cool"

If you need a good muffler check out Cone Engineering. With or without baffle. Flow nice and fit the look of you bike well.
 
XVRacer said:
If you need a good muffler check out Cone Engineering. With or without baffle. Flow nice and fit the look of you bike well.

+1 here. Love my Cone. Agree that people need to chill out and quit with the dramatic name calling. We are all here to just share ideas and thoughts. I'm not gonna agree with everyone, but I respect everyone's right to do what they want. It seems that there are always some people who's hobby it is to be internet bullies. These are likely the same dudes that have really low self worth and no real friends so the only excitement in their life comes from calling people names on the Internet, I just ignore. Most of you dudes are pretty sweet in my book and u appreciate the diversity here and all the help. Rock on bros.


Yeah Son!
 
ArBrnSnpr said:
Insightful debate folks!

My pipe has a resonator insert though.

However, even if it didn't, people have been riding around with straight pipes since before I was born so I would bet that IF my pipes were straight it wouldn't cause legislature banning motorcycle modifications. This is nothing new and nothing to be a dramatic about.

Some of you guys need to take a deep breath and relax. Go ride your bike and stop getting worked up to the point of insulting others about what they choose to do to their bikes.

I like your style man, maintaining your composure. It irks me a bit when people take over really interesting, entertaining and informative threads to argue semantics. There always seem to be the same few guys. Anyway, about your fork caps. I have a 79 cb750K which doesn't have the air assist caps, just standard caps. I'm 99% sure those would fit your forks and clean that up for you. Did you mention in your thread where you got the progressive springs from? I'm looking to do the same for my ride.
 
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